no sound in headphone while using window 8

[rst]

I am using window 8 (64 bits)
Speakers are working fine but there is no sound in headphone
In window 7 headphone is working fine.
I don't know what happens to it in window 8
plz help

 

[Vignesh B]

Check if the headphone option is disabled in the sound settings page. Right click in the playback window and click on Show Disabled devices.
Another option might be to enable the rear panel jacks. Also is the headphone working when connected to the rear panel?

 

[rst]

Check if the headphone option is disabled in the sound settings page. Right click in the playback window and click on Show Disabled devices.
Another option might be to enable the rear panel jacks. Also is the headphone working when connected to the rear panel?

problem is solved.
second option worked for me.
thanks a lot "Vignesh B"